| 摘要 |
The invention relates to a stand-up support comprising a seating support having a first support element. The first support element is pivotably connected to a frame support at a first, front side, wherein preferably a second support element is pivotably connected to the first support element at a second, rear side, opposite the first side, wherein the frame support comprises a torsion spring device, biasing the first support element towards an upright position in which the second side extends above the first side. Said torsion spring device can comprises at least one first spring cassette inserted into a profile, especially a tube provided along the first side, which first spring cassette is exchangeable for a similar second spring cassette having a different torsion resistance than the first spring cassette. Alternatively or additionally, the spring device can be mounted in a frame or forms part thereof at a front side of the frame, wherein a bridge element is provided behind the spring device, which bridge portion provides for a mounting for at least one pivot for an arm between said bridge portion and the second support element. |
